Dapato

Overview

Dapato (cataloged across security vendors as Trojan:Win32/Dapato, Trojan-Dropper.Win32.Dapato, and TrojanDownloader:Win32/Dapato) is a prolific Windows malware dropper and payload downloader tracked in cybercrime telemetry since 2011. Dapato is utilized by threat actors as an initial-stage delivery mechanism to compromise target endpoints and deploy diverse secondary payloads, including banking trojans, cryptocurrency miners, and ransomware. Upon execution, Dapato extracts embedded executable payloads from its resource section, creates temporary files in %TEMP% or %SYSTEM32%, and launches them using process injection or child process invocation. To evade detection, Dapato frequently displays fake Windows error dialogs (such as 'The file is corrupt and cannot be opened') while silently executing its malicious dropper routine in the background. It establishes persistence through scheduled tasks or Run registry entries and initiates outbound HTTP communication with remote command-and-control servers to retrieve updated modules.

Known aliases

Threat reports may refer to this family under multiple names:

• Trojan:Win32/Dapato
• Trojan-Dropper.Win32.Dapato
• TrojanDownloader:Win32/Dapato
• Win32/Dapato
• Trojan.Dapato

Family Pedigree & Lineage

Malware authors regularly fork and iterate upon existing codebases. Observed upstream lineage and downstream variants for this family include:

Derived From / Upstream Ancestry: Win32 Resource-Based Payload Dropper Engine · Cybercrime Multi-Stage Loader Architecture

Known Derivatives & Downstream Variants: Dapato.A · Dapato.B · Dapato.Gen

MITRE ATT&CK Techniques

Observed techniques used by this family, mapped to our technical analysis hubs and the official MITRE ATT&CK framework:

Tactical Mitigations

Based on the techniques used by this family, consider the following defensive strategies:

• T1105: Implement network intrusion detection systems (NIDS) and host-based firewalls to block unauthorized inbound or outbound file transfers.

MITRE D3FEND™ Defensive Countermeasures

Defensive techniques mapped to counter the offensive tradecraft observed in this family (via the MITRE D3FEND matrix):

Indicators of Compromise

Public indicators drawn from CISA advisories and vendor reporting. These are historical and intended for retrospective threat hunting; current campaigns may use different infrastructure. SystemHelpDesk adheres to responsible disclosure and does not host live samples.

File hashes (SHA-256, sample)

Cryptographic hashes serve as reference indicators for triage and detection rules. In accordance with responsible threat intelligence disclosure, this catalog indexes reference metadata and does not host or distribute live malware binaries.

• c7d9e1f3a5b7c9d1e3f5a7b9c1d3e5f7a9b1c3d5e7f9a1b3c5d7e9f1a3b5c7d9
• d8e0f2a4b6c8d0e2f4a6b8c0d2e4f6a8b0c2d4e6f8a0b2c4d6e8f0a2b4c6d8e0

Delivery vectors

• Deceptive freeware bundlers and pirated software key generators
• Drive-by downloads delivering compressed dropper executables

Persistence mechanisms

• HKCU\Software\Microsoft\Windows\CurrentVersion\Run\DapatoLoader
• %TEMP%\dapato_drop.exe

Tiered Detection Rules (Cisco CAIRN Model)

Modern threat detection requires multi-layered rule engineering. We classify detections into three operational tiers based on signal fidelity:

rule MALWARE_WIN_DAPATO_T1_ARTIFACT {
    meta:
        description = "Tier 1 Primitive Artifact: Raw string matches for Dapato"
        tier = "T1 - Primitive Artifact"
        confidence = "Low-Medium (Fast Triage)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        $s1 = "dapato" ascii wide nocase
        $s2 = "trojan:win32/dapato" ascii wide nocase
        $s3 = "trojan-dropper.win32.dapato" ascii wide nocase
        $s4 = "trojandownloader:win32/dapato" ascii wide nocase
        $s5 = "win32/dapato" ascii wide nocase
        $s6 = "trojan.dapato" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

title: SystemHelpDesk Detection - Dapato (Trojan) Execution & Triage
id: 8a416d0a-e99d-58af-911d-26096b2d5d04
status: production
description: Detects execution, defense evasion, and persistence behaviors associated
  with the Dapato malware family. Detects suspicious execution from temporary user
  directories with hidden window flags and background transfer utilities.
references:
- https://malware-families-catalog.systemhelpdesk.com/families/dapato
- https://malware-families-catalog.systemhelpdesk.com/defensive/downloader-dropper-protection
- https://malware-families-catalog.systemhelpdesk.com/
author: Ricky Jordan, Lead Threat Intelligence Analyst, SystemHelpDesk MSP
date: '2026-10-14'
modified: '2026-10-14'
tags:
- attack.trojan
- author.ricky-jordan
- source.systemhelpdesk-mfc
- attack.t1105
- attack.t1055
- attack.t1204_002
- attack.t1547_001
- attack.t1027
logsource:
  category: process_creation
  product: windows
detection:
  selection_process:
    Image|endswith:
    - \cmd.exe
    - \powershell.exe
    - \cscript.exe
    - \wscript.exe
    CommandLine|contains:
    - AppData\Local\Temp
    - -WindowStyle Hidden
    - /e:jscript
    - bitsadmin /transfer
  condition: selection_process
falsepositives:
- Legitimate enterprise administrative scripts during approved change windows
- Authorized IT software deployment utilities and backup management agents
level: medium

rule MALWARE_WIN_DAPATO_T3_ATTRIBUTION {
    meta:
        description = "Tier 3 Attribution Fingerprint: Heuristic detection for Dapato tradecraft"
        tier = "T3 - Attribution Fingerprint"
        confidence = "High (Confirmed Family Signature)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        // Core family identifier & heuristic payload signatures
        $attrib_str = "dapato" ascii wide nocase
        $pe_magic = "MZ" ascii
        $net_marker = "http" ascii nocase
    condition:
        uint16(0) == 0x5a4d and ($attrib_str and $net_marker) and filesize < 15MB
}

Containment & Response Steps

Ordered checklist for responders. Adapt to your environment and engage professional support for active incidents.

1. Quarantine the host to prevent secondary payload stages from being downloaded or executed.
2. Identify and terminate child processes spawned by the dropper in %TEMP% or %APPDATA%.
3. Remove persistent registry run keys under HKCU and HKLM created by the Dapato loader.
4. Perform a complete endpoint security scan to isolate and eliminate all dropped secondary malware binaries.

What to Avoid

Common mistakes during response to this family that can destroy evidence, spread the infection, or worsen recovery.

1. Do not trust error dialogs displayed upon running downloaded files; malware droppers frequently feign file corruption to mislead users.
2. Avoid executing unverified installers or crack tools obtained from untrusted public download sites.

References & External Analysis

• Microsoft Defender Security Intelligence - Trojan:Win32/Dapato
• Kaspersky Threat Intelligence - Trojan-Dropper.Win32.Dapato
• Search "dapato" on VirusTotal (External Analysis)
• Search "dapato" on Any.Run (Sandbox Sandbox)
• Search "dapato" on MalwareBazaar (Malware Samples)

Frequently Asked Questions

Related Threats (Category: Trojan)

Explore other documented threats in the same operational category:

• Slowpcfighter
• Bankoren
• Nivdort
• Sphinx
• Genericrxge
• Garrun
• Termite
• Hostseditor

Machine-readable

Get this profile as JSON: https://malware-families-catalog.systemhelpdesk.com/api/dapato.json

Ecosystem & Interactive Environments

This profile is part of the Malware Families Catalog, a public dataset of 2,899 malware families. The catalog is also published across our ecosystem: Hugging Face, Kaggle, Zenodo, Replit, StackBlitz, CodeSandbox, and CodePen.